Efficient heat exchanger

Abstract

The utility model discloses an efficient heat exchanger and belongs to the technical field of heat exchangers. Comprising a shell, a left box body, a right box body, a heat exchange tube and two fixing plates. The two ends of the shell, the right end of the left box body and the left end of the right box body are each provided with a first connecting plate, the shell, the left box body and the right box body are installed and fixed through first bolts penetrating through the first connecting plates, the two sides of the shell are each provided with a second connecting plate, the two fixing plates are installed on the outer sides of the second connecting plates through second bolts, and one ends of the heat exchange pipes are in threaded connection with the fixing plates one by one. The other end is inserted into the other fixing plate; the shell, the left box body and the right box body are convenient to mount and dismount through the first connecting plates connected through the first bolts, the fixing plates are mounted on the second connecting plates through the second bolts, the fixing plates are convenient to dismount, one end of each heat exchange tube is in threaded connection with one fixing plate, and the other end of each heat exchange tube is in inserted connection with the other fixing plate. And the heat exchange pipes are convenient to disassemble, so that the device is convenient to clean.

Description

Technical Field

[0001] The utility model provides a high-efficiency heat exchanger, belonging to the technical field of heat exchangers. Background Art

[0002] A heat exchanger is a device used to exchange heat between two or more fluids at different temperatures. Its core function is to transfer heat from one fluid to another by heat conduction, convection or radiation without allowing the two fluids to mix directly. Heat exchangers are widely used in industrial production, energy engineering, HVAC heating, ventilation and air-conditioning systems, power engineering, chemical industry, petroleum, metallurgy, food processing and other fields.

[0003] Patent No.: CN219977186U; discloses a high-efficiency heat exchanger, the technical solution of which includes a shell, the left and right ends of the shell are respectively fixed with a left box body and a right box body by multiple bolts, fixing plates are clamped at the left and right ends of the shell, heat exchange tubes are fixed on the fixing plates, the two ends of the heat exchange tubes are respectively connected with the left box body and the right box body, a plurality of baffles are fixed in the shell, a hot fluid inlet and a hot fluid outlet are respectively provided at the upper and lower ends of the shell, a cold fluid inlet and a first cold fluid outlet are respectively provided at the upper and lower ends of the left box body, a first valve is installed at the first cold fluid outlet, a second cold fluid outlet is provided at the lower end of the right box body, a second valve is installed at the second cold fluid outlet, a partition is fixed in the middle of the left box body, a switching port is provided on the partition, and a switching device is provided on the upper side of the switching port.

[0004] Although the above patents are capable of heat exchange, in many industrial and civil fields, such as HVAC systems, boilers and cooling towers, water is the most commonly used heat exchange medium because it has high specific heat capacity and good heat transfer performance, and is low cost and easy to obtain and process. However, when the water temperature changes or the water quality is unstable, the minerals and impurities in the water will crystallize and precipitate on the inner wall of the heat exchanger to form scale, which will affect the heat exchange efficiency and even cause pipe blockage. Therefore, in order to avoid scaling, cleaning and maintenance are required. However, this device can only use descaling agents or fluid flushing during cleaning and maintenance, and the cleaning effect is not good for some stubborn scale. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing device is inconvenient to clean.

[0006] In order to solve the above problems, the utility model proposes a technical solution: a high-efficiency heat exchanger, including a shell, a left box, a right box, a heat exchange tube, and two fixing plates; two ends of the shell, the right end of the left box, and the left end of the right box are respectively provided with a connecting plate 1, the shell, the left box, and the right box are fixed by a bolt 1 passing through the connecting plate 1, two connecting plates are respectively provided on both sides of the shell, and the two fixing plates are respectively installed on the outside of the connecting plate 2 by bolts 2, one end of the heat exchange tube is threadedly connected to one fixing plate, and the other end is plugged with the other fixing plate;

[0007] As an improvement, a water inlet pipe is provided on the upper side of one side of the shell, and a water outlet pipe is provided on the lower side of the other side. A plurality of baffles are staggered in the middle of the shell, and a plurality of baffles are provided with through holes for the heat exchange tubes to pass through and having the same diameter as the heat exchange tubes. Symmetrical water inlet pipes and water outlet pipes are provided on the upper and lower sides of the left box body, and an isolation plate for separating the water inlet pipe and the water outlet pipe is provided in the middle of the left box body;

[0008] As an improvement, one end of the heat exchange tube is provided with an external thread;

[0009] As an improvement, the two fixing plates are provided with a plurality of threaded holes corresponding to the second bolts at the parts near the outer edges, and a through hole with the same diameter as the inner diameter of the heat exchange tube is provided in the middle, one side of one fixing plate is provided with an internal thread sleeve corresponding to the external thread, and one side of the other fixing plate is provided with a plug sleeve with an inner diameter corresponding to the outer diameter of the through hole;

[0010] As an improvement, a plurality of mounting holes having diameters larger than a screw portion of the bolt and smaller than a head portion of the bolt are provided at equal angles on the connecting plate;

[0011] As an improvement, the second connecting plate is provided with a plurality of threaded holes corresponding to the fixing plate;

[0012] As an improvement, a sealing ring is provided at the part where the shell, the left box body and the right box body fit together.

[0013] Beneficial effects of the utility model:

[0014] By providing a connecting plate one connected by bolt one, the shell, the left box body and the right box body are easy to install and disassemble. By providing a fixing plate installed on the connecting plate two by bolt two, the fixing plate is easy to disassemble. By providing a heat exchange tube with one end threadedly connected to a fixing plate and the other end plugged into another fixing plate, the heat exchange tube is easy to disassemble, thereby making the device easy to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of a high-efficiency heat exchanger.

[0016] Figure 2 It is a cross-sectional view of a high-efficiency heat exchanger of the utility model.

[0017] Figure 3 The utility model is a schematic diagram of the installation holes of a high-efficiency heat exchanger.

[0018] Figure 4 The utility model is a heat exchange tube and a fixed plate explosion-proof device for a high-efficiency heat exchanger Figure 1 .

[0019] Figure 5 The utility model is a heat exchange tube and a fixed plate explosion-proof device for a high-efficiency heat exchanger Figure 2 .

[0020] 1. Shell; 2. Left box; 3. Right box; 4. Heat exchange tube; 5. Fixing plate; 6. Connecting plate 1; 7. Bolt 1; 8. Connecting plate 2; 9. Bolt 2; 10. Baffle; 11. Isolation plate; 12. External thread; 13. Threaded hole; 14. Internal thread sleeve; 15. Insert sleeve; 16. Mounting hole. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] according to Figure 1 —5: The utility model provides a high-efficiency heat exchanger: comprising a shell 1, a left box body 2, a right box body 3, a heat exchange tube 4, and two fixing plates 5; connecting plates 6 are respectively arranged at both ends of the shell 1, the right end of the left box body 2, and the left end of the right box body 3; the shell 1, the left box body 2, and the right box body 3 are fixed by bolts 7 passing through the connecting plate 6; connecting plates 8 are respectively arranged on both sides of the shell 1; the two fixing plates 5 are respectively installed on the outside of the connecting plate 8 by bolts 9; one end of the heat exchange tube 4 is threadedly connected to one fixing plate 5, and the other end is plugged into the other fixing plate 5; by providing a connecting plate 6 connected by bolts 7, the shell 1, the left box body 2, and the right box body 3 are easy to install and disassemble; by providing a fixing plate 5 installed on the connecting plate 8 by bolts 9, the fixing plate 5 is easy to disassemble; by providing a heat exchange tube 4 with one end threadedly connected to one fixing plate 5 and the other end plugged into the other fixing plate 5, the heat exchange tube 4 is easy to disassemble, thereby making the device easy to clean;

[0023] according to Figure 2As shown: a water inlet pipe is provided on the upper side of one side of the shell 1, and a water outlet pipe is provided on the lower side of the other side. A plurality of baffles 10 are staggered in the middle of the shell 1. A plurality of baffles 10 are provided with through holes for the heat exchange tube 4 to pass through and having the same diameter as the heat exchange tube 4. Symmetrical water inlet pipes and water outlet pipes are provided on the upper and lower sides of the left box 2. An isolation plate 11 for separating the water inlet pipe and the water outlet pipe is provided in the middle of the left box 2. The device can perform heat exchange operations by connecting the water inlet pipe and the water outlet pipe on the shell 1 to the hot water pipe and connecting the water inlet pipe and the water outlet pipe of the left box 2 to the cold water pipe. The baffle 10 can increase the turbulence of the hot water, increase the relative speed and disturbance between the fluid and the heat exchange tube, thereby enhancing the convective heat transfer effect, increasing the residence time of the fluid in the heat exchanger, so that the heat has more opportunities to be transferred, and improving the heat exchange efficiency. The isolation plate 11 can control the flow direction of the cold water, thereby ensuring heat exchange.

[0024] according to Figure 3 As shown: a plurality of mounting holes 16 with diameters larger than the screw rod portion of the bolt 7 and smaller than the head portion of the bolt 7 are provided at equal angles on the connecting plate 6, and a sealing ring is provided at the portion where the housing 1, the left box body 2, and the right box body 3 are in contact with each other, so that the housing 1, the left box body 2, and the right box body 3 can be installed and fixed by using the bolt 7 in combination with the nut, and the sealing ring can ensure the sealing of the device when in use, so as to prevent leakage;

[0025] according to Figure 4 , 5 As shown: one end of the heat exchange tube 4 is provided with an external thread 12, the parts of the two fixing plates 5 near the outer edges are provided with a plurality of threaded holes 13 corresponding to the bolts 9, and the middle part is provided with a through hole with a diameter the same as the inner diameter of the heat exchange tube 4, one side of one of the fixing plates 5 is provided with an internal thread sleeve 14 corresponding to the external thread 12, and one side of the other fixing plate 5 is provided with a plug sleeve 15 with an inner diameter corresponding to the outer diameter of the through hole, and the connecting plate 8 is provided with a plurality of threaded holes 13 corresponding to the fixing plate 5; in this way, the heat exchange tube 4 can be screwed into the internal thread sleeve 14, and then fixed by a plurality of baffles 10 and the plug sleeve 15, and the fixing plate 5 can be fixed by screwing the bolts 9 into the threaded holes 13 of the fixing plate 5 and the connecting plate 8.

[0026] The principle of the utility model: when in use, first connect the water inlet pipe and the water outlet pipe on the shell 1 to the hot water pipe, and then connect the water inlet pipe and the water outlet pipe of the left box 2 to the cold water pipe. When the device performs heat exchange, the hot water enters the shell 1 and is increased in turbulence by the baffle 10. The cold water enters the left box 2 and is blocked by the isolation plate 11, so that the cold water can only pass through the heat exchange tube 4, and then enter the right box 3, and then pass through the heat exchange tube 4 again to reach the left box 2, and finally flow out, thereby completing the heat exchange;

[0027] After the device has been used for a period of time, because the temperature of cold water is different from that of hot water when it passes through the heat exchange tube 4, the minerals and impurities in the water are crystallized and precipitated on the inner and outer walls of the heat exchange tube 4, forming scale, which affects the heat exchange efficiency. In this case, the device needs to be disassembled for cleaning. First, the device is separated from the hot water pipe and the cold water pipe, and then the nut of the bolt 7 is unscrewed and the bolt 7 and the nut are removed, so as to separate the left box body 2 and the right box body 3 from the shell 1, and then the bolt 2 is unscrewed to remove the fixing plate 5 first, and then the inner threaded sleeve 14 is removed. When the fixing plate 5 is installed, the scale on the outer wall of the heat exchange tube 4 will be scraped off by the through hole of the baffle 10, and then the heat exchange tube 4 is unscrewed from the fixing plate 5 provided with the internal threaded sleeve 14, so that the various parts of the device are separated, and then water is injected into the shell 1 and shaken to make the hanging scale flow out, and then a pipe is inserted into the heat exchange tube 4 and repeatedly pulled and pulled, so that the scale inside the heat exchange tube 4 can be cleaned off, and then the various parts of the device are cleaned. After the cleaning is completed, the device is reinstalled and the hot water pipe and the cold water pipe are connected.

[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A high-efficiency heat exchanger, comprising a shell (1), a left box (2), a right box (3), a heat exchange tube (4), and two fixing plates (5); characterized in that: The two ends of the shell (1), the right end of the left box (2), and the left end of the right box (3) are respectively provided with a connecting plate (6); the shell (1), the left box (2), and the right box (3) are fixedly mounted by means of a bolt (7) passing through the connecting plate (6); two connecting plates (8) are respectively provided on both sides of the shell (1); the two fixing plates (5) are respectively mounted on the outside of the connecting plate (8) by means of bolts (9); one end of the heat exchange tube (4) is threadedly connected to one fixing plate (5), and the other end is plugged into the other fixing plate (5).

2. A high efficiency heat exchanger according to claim 1, characterized in that: A water inlet pipe is provided on the upper side of one side of the shell (1), and a water outlet pipe is provided on the lower side of the other side. A plurality of baffles (10) are staggeredly provided in the middle of the shell (1). A plurality of baffles (10) are provided with through holes for the heat exchange tubes (4) to pass through and having the same diameter as the heat exchange tubes (4). Symmetrical water inlet pipes and water outlet pipes are provided on the upper and lower sides of the left box (2). An isolation plate (11) is provided in the middle of the left box (2) to separate the water inlet pipe and the water outlet pipe.

3. A high-efficiency heat exchanger according to claim 1, characterized in that: One end of the heat exchange tube (4) is provided with an external thread (12).

4. A high efficiency heat exchanger according to claim 3, characterized in that: The two fixing plates (5) are provided with a plurality of threaded holes (13) corresponding to the second bolts (9) at their outer edges, and a through hole having a diameter the same as the inner diameter of the heat exchange tube (4) is provided in the middle, one side of one of the fixing plates (5) is provided with an internal thread sleeve (14) corresponding to the external thread (12), and one side of the other fixing plate (5) is provided with a plug sleeve (15) having an inner diameter corresponding to the outer diameter of the through hole.

5. The high-efficiency heat exchanger according to claim 1, characterized in that: The connecting plate (6) is provided with a plurality of mounting holes (16) at equal angles, the diameters of which are larger than the screw rod portion of the bolt (7) and smaller than the head portion of the bolt (7).

6. A high-efficiency heat exchanger according to claim 4, characterized in that: The second connecting plate (8) is provided with a plurality of threaded holes (13) corresponding to the fixing plate (5).

7. A high-efficiency heat exchanger according to claim 1, characterized in that: The parts where the shell (1), the left box body (2) and the right box body (3) fit together are provided with sealing rings.

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